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Senior Database Administrator (MSSQL & MongoDB)

5-10 Years
SGD 5,000 - 7,500 per month
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  • Posted 9 days ago
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Job Description

1. 24/7 Production Database Operations

  • Provide L2/L3 support for MSSQL and MongoDB in Production and DR environments.
  • Participate in standby/on-call roster for critical incidents.
  • Troubleshoot and resolve:
  • Database outages
  • Always On failover issues
  • Blocking / deadlocks
  • Performance bottlenecks
  • Storage / IOPS constraints
  • Perform root cause analysis
  • (RCA) and impleme nt preventive measures.

2. High Availability & Reliability Management

Microsoft SQL Server (MSSQL)

  • Manage Always On Availability Groups.
  • Monitor replication and failover health.
  • Perform database patching and cumulative updates.
  • Maintain backup and restore strategy (Full, Differential, Log backups).
  • Conduct periodic DR drills and restoration validation.
  • Optimize indexing strategies and execution plans.

MongoDB

  • Manage Replica Sets and automatic failover.
  • Monitor memory, disk, and index performance.
  • Manage backup/restore and periodic recovery validation.
  • Maintain cluster health and shading (if applicable).

3. Performance & Capacity Management

  • Conduct proactive health checks.
  • Query execution plans (MSSQL)
  • Slow queries and indexing (MongoDB)
  • Perform database tuning and optimization.
  • Forecast capacity growth and scaling requirements.

4. Change & Release Support
Review database scripts prior to production deployment.
Support data migration and release windows.
Validate database stability post-deployment.
Ensure proper rollback and recovery procedures are in place.

5. Security & Compliance (Government Environment)

  • Implement database security hardening.
  • Role-based access control
  • Auditing and logging
  • Support vulnerability assessment (VA) remediation.
  • Ensure compliance with government security policies.
  • Maintain proper documentation and SOPs for audit readiness.

Technical Requirements

  • 5-8+ years of DBA experience.
  • Strong hands-on experience in Microsoft SQL Server (Always On, HA, Performance Tuning), MongoDB (Replica Sets, Backup/Restore)
  • Experience supporting 24/7 mission-critical systems.
  • Experience handling Severity 1 production incidents.
  • Experience in supporting application deployment (data patching, data seed etc.)
  • Strong troubleshooting and analytical skills.

More Info

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Job ID: 143873143